DNA FINGERPRINTING - THE PERFECT MATCH?

Forensic Science Project

Activity Objectives

During this activity you should be able to:

• Using diagrams, explain why DNA fingerprinting is an effective method of identifying a specific person
• Use bar codes to model how DNA fingerprinting is used in identification of a DNA sample

Procedure

• Randomly choose three clear plastic bar code which represent DNA fingerprints of possible suspects
• Compare each suspects' DNA fingerprints with the DNA fingerprints on file supplied by your teacher.
• In your report, record the letter of each of the three suspects beside their name.

Reflections on the Activity

In your crime lab book, answer any three of the following questions.

1. What is DNA and where is it found?
2. Make a diagram and and use this diagram to explain how you would identify a suspect using DNA Fingerprinting.
3. Why does DNA Fingerprinting enable you to identify a specific individual?
4. Why was using barcodes a good model to illustrate how DNA Fingerprinting works?
5. Generate a scenario where you as a Forensic Scientist would use DNA Fingerprinting to identify a crime suspect.
6. Identify the present problems with DNA fingerprinting. What do you see in the future for DNA fingerprinting?

Return to Student Introduction Page

Return to Teacher Lessons Introduction Page

Return to Forensic Science Introduction Page